If you want to read more about this, have a look at [[Funtoo_Linux#What_are_the_differences_between_.27stable.27.2C_.27current.27_and_.27experimental.27_.3F|Differences between stable, current and experimental]].

Inside <code>/funtoo-current/x86-64bit/</code> on one of our mirrors, you'll see a bunch of directories for various ''subarches'' of Funtoo Linux. Subarches are builds of Funtoo Linux that are designed to run on a particular type of CPU, to offer the best possible performance. They also take advantage of the instruction sets available for each CPU.

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If you are using an AMD-based CPU, download a stage3 from <code>generic_64</code>, <code>amd64-k8</code>, <code>amd64-k10</code>, <code>amd64-bulldozer</code>, <code>amd64-piledriver</code>, <code>amd64-steamroller</code> or <code>amd64-jaguar</code>. See [[Subarches#64-bit AMD Processors|our list of 64-bit AMD subarches]] for help figuring out which one is best for you.

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If you are using an Intel-based CPU, download a stage3 from <code>generic_64</code>, <code>atom_64</code>, <code>core2_64</code> or <code>corei7</code>. Note that <code>corei7</code> is ideal for any modern Intel processor, including Core i3 and Core i5, and many Xeons. [[Subarches#64-bit Intel Processors|our list of 64-bit Intel subarches]] for help figuring out which one is best for you.

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If you are using a 32-bit CPU, download a stage3 from <code>generic_32</code>, <code>i686</code>, <code>core2_32</code>, <code>atom_32</code> or <code>athlon-xp</code>.

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==== Setting the Date ====

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{{fancyimportant|If your system's date and time are too far off (typically by months or years,) then it may prevent Portage from properly downloading source tarballs. This is because some of our sources are downloaded via HTTPS, which use SSL certificates and are marked with an activation and expiration date. However, if you system time is relatively close to correct, you can probably skip this step for now.}}

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Now is a good time to verify the date and time are correctly set to UTC. Use the <code>date</code> command to verify the date and time:

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<console>

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# ##i##date

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Fri Jul 15 19:47:18 UTC 2011

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</console>

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If the date and/or time need to be corrected, do so using <code>date MMDDhhmmYYYY</code>, keeping in mind <code>hhmm</code> are in 24-hour format. The example below changes the date and time to "July 16th, 2011 @ 8:00PM" UTC:

{{important|é muito importante utilizar <code>tar's</code> "<code>'''p'''</code>" option when extracting the Stage 3 tarball - it tells <code>tar</code> to ''preserve'' any permissions and ownership that exist within the archive. Without this option, your Funtoo Linux filesystem permissions will be incorrect.}}

What Architecture?

If you're not sure, pick x86-64bit, or possibly pure64 for server systems.

For PC-compatible systems, the following choices are available:

Architecture

Description

x86-64bit

For modern 64-bit processors. Uses new 64-bit instructions and address space. Maintains 32-bit compatibility with multilib.

pure64

For modern 64-bit processors but with no support for 32-bit compatibility.

x86-32bit

For older 32-bit systems such as Athlon XP, Pentium 4, or earlier Atom.

Your SubArch

Inside /funtoo-current/x86-64bit/ on one of our mirrors, you'll see a bunch of directories for various subarches of Funtoo Linux. Subarches are builds of Funtoo Linux that are designed to run on a particular type of CPU, to offer the best possible performance. They also take advantage of the instruction sets available for each CPU.

If you are using an AMD-based CPU, download a stage3 from generic_64, amd64-k8, amd64-k10, amd64-bulldozer, amd64-piledriver, amd64-steamroller or amd64-jaguar. See our list of 64-bit AMD subarches for help figuring out which one is best for you.

If you are using an Intel-based CPU, download a stage3 from generic_64, atom_64, core2_64 or corei7. Note that corei7 is ideal for any modern Intel processor, including Core i3 and Core i5, and many Xeons. our list of 64-bit Intel subarches for help figuring out which one is best for you.

If you are using a 32-bit CPU, download a stage3 from generic_32, i686, core2_32, atom_32 or athlon-xp.

Setting the Date

Important

If your system's date and time are too far off (typically by months or years,) then it may prevent Portage from properly downloading source tarballs. This is because some of our sources are downloaded via HTTPS, which use SSL certificates and are marked with an activation and expiration date. However, if you system time is relatively close to correct, you can probably skip this step for now.

Now is a good time to verify the date and time are correctly set to UTC. Use the date command to verify the date and time:

# date
Fri Jul 15 19:47:18 UTC 2011

If the date and/or time need to be corrected, do so using date MMDDhhmmYYYY, keeping in mind hhmm are in 24-hour format. The example below changes the date and time to "July 16th, 2011 @ 8:00PM" UTC:

é muito importante utilizar tar's "p" option when extracting the Stage 3 tarball - it tells tar to preserve any permissions and ownership that exist within the archive. Without this option, your Funtoo Linux filesystem permissions will be incorrect.